Hi ,

I have a List box which contains another lisbox Inside it.

<ListBox x:Name="listBoxParent">
    <ListBox.ItemTemplate>

                        <DataTemplate>


                                    <Image x:Name="thumbNailImagePath" Source="/this.jpg"  Style="{StaticResource ThumbNailPreview}" />


                                        <TextBlock Margin="5" Text="{Binding Smthing}" Style="{StaticResource TitleBlock_Artist}" />
                                    </StackPanel>
                                    <StackPanel Style="{StaticResource someStyle}" >

                                        <ListBox x:Name="listBoxChild" Loaded="listBoxChild_Loaded" BorderThickness="0">
                                            <ListBox.ItemTemplate>
                                                <DataTemplate>
                                                    <StackPanel>
                                                        <TextBlock Margin="5" Text="{Binding myText}" Width="300"/>
                                                    </StackPanel>

                                                </DataTemplate>
                                            </ListBox.ItemTemplate>
                                        </ListBox>
                                    </StackPanel>

                        </DataTemplate>

                    </ListBox.ItemTemplate>
                    <ListBox.ItemsPanel>

                    </ListBox.ItemsPanel>

</ListBox>

Now while I try to focus to the child List Box :

 public void listBoxChild_Loaded(object sender, RoutedEventArgs e)
        {
           var myListBox = (ListBox)sender;

           myListBox .ItemsSource = PageVariables.eOUTData;//listboxSongsData;
           myListBox .SelectedIndex = 0;
           myListBox .Focus();
        }

Thanks, Subhen